* {
    margin: 0;
    padding: 0;
}
.taobao {
    position: relative;
    width: 520px;
    height: 480px;
    margin: 100px auto;
    border: 10px solid #108881;
    overflow: hidden;
    
}
li {
    list-style: none;
    float: left;
}
a {
    text-decoration: none;
}
img{
    width: 520px;
    height: 480px;
}
.left,
.right {
    position: absolute;
    top: 50%;
    margin-top: -15px;
    width: 40px;
    height: 30px;
    font-size: 20px;
    color: white;
    background-color: rgba(0,0,0,.3);
    text-align: center;
}
.left {
    left: 0;
    border-top-right-radius: 15px;
    border-bottom-right-radius: 15px;
}
.right {
    right: 0;
    border-top-left-radius: 15px;
    border-bottom-left-radius: 15px;
}
ul {
    width: 600%;
}
ol {
    position: absolute;
    left: 50%;
    top: 90%;
    margin-left: -35px;
    background-color: rgba(255,255,255,.3);
    width: 70px;
    height: 13px;
    z-index: 100;
    border-radius: 7px;
}
ol li {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin: 3px;
    background-color: #fff;
    box-shadow: 1px 1px pink;
}
.change {
    background-color: #e1251b;
}